Press mechanism



2 Sheets-Sheet l R. W. DINZL PRESS MECHANISM Filed Nov. 6, 1928 19NVENTO R BWDinz], 25

July 11, 1933.

R. W. DINZL PRESS MECHANISM July 11, 1933.

Filed Nov. 6, 1928 2 Sheets-Sheet 2 INVENTOR= RWDinzl,

Patented July 11, 1933 RICHARD VT. DINZL, (3F MIARGATE CITY, IJE

FDUNDRY MACHIIQ'E COIHPANY, OF 19111.net;

TION or PENNSYLVANIA KGB TO EGUTHWARK YLVANIA, A CORPORA- PRESSMECHANISM:

Application filed November 6, 1928.

My invention relates to press mechanism for effecting condensation ofpulverulent material, powdered carbon, for instance, preliminarilypacked in containers such as bags of paper, fabric or the like.

The object of my invention is to provide a simple and eflicientstructure operating automatically upon pressing a foot lever, suchaction opening a valve admitting fluid pressure to a cylinder whichlowers a plunger in contact with the bag of material disposed within achamber formed by a fixed rear wall and a movable front wall which, inthe inactive position, is tilted forward to provide a trough receivingthe material to be pressed.

A further object of my invention is to simplify the operation ofcompressing the material and reduce the time usually required for suchpurpose.

And a still further object of my invention is to utilize fluid pressureto effect movement of the compressing plunger in both directions.

These and other features of my invention are more fully set forthhereinafter; reference being had to the accompanying drawings, in whichFigure 1 is a front elevation of press mechanism embodying the featuresof my invention.

Fig. 2 is a sectional elevation on the line IIH, Fig. 1; looking in thedirection of the arrow a. e I

' Fig. 3 is a side elevation of the lower part of the structure, lookingin the direction of the arrow 6 Fig. 1, and

Fig. 4 is a sectional View of the valve con trolling admission of motivefluid to the cylinder in which the piston for moving the compressingplunger is disposed.

My improved structure may comprise a suitable frame consisting of a base1 made up of suitable beams and filling members; an

upper cross-head. 2 made up of similar beams,

and side supports 3 which may be structural members channel shape incross section. The cross-head supports a cylinder 4 in the upper part ofthe frame, and the base supports a fixed anvil frame 5, constituting therear and side walls of-a compressing chamber,

her 8 Serial No. 317,552.

which walls are indicated respectively at 5 and 5". Y

The side walls of the lower portion of the anvil frame projectforwardly, as clearly indicated in Fig. 2, and are furnished withjournals 6, for a rock shaft 7, which shaft supports a movable member 8which constitutes the front wall and bottom of the compressing chamber,indicated respectively at S and 8"; such parts being shown in the closedposition in full lines andin the open position in dotted lines, in thesectional view, Fig. 2. When in the closed position, the lower wallforming the bottom 8" of the compression chamber, may rest upon a seriesof rib projections 53 extending upwardly from the lower cross member ofthe anvil frame which may be bolted to the base.

The upper part of the side walls of the anvil frame 5 are provided withguides 9 between which and the rear wall 5" of said frame, a plunger 10is adapted to move; such plunger being connected to a piston rod 11,

depending from a piston 12, disposed within the cylinder l. The rockshaft carrying the member 8 constituting the front wall and bottom ofthe compression chamber is connected at its ends to weighted levers 13,

whose normal action serves to close said member and hold it in theposition to complete the compression chamber, as indicated by full linesFig. 2. These levers are pivotally connected at-13, with links 14;,having slotted upper ends 14 connected at A", to side arms 10 of theplunger 10, and when the latter is in the raised position, with thepiston in its extreme upper position, as indicated by the dotted linesFig. 2, said links lift the weighted levers 13 and move thememproviding'the front wall and bottom of the compressingchamberoutwardly to theposition shown by dotted lines Fig. 2.

The side walls 5 of the anvil frame 5 project forwardly as clearly shownin Fig. 2, and when the front wall of the movable memher 8 is in theposition illustrated by dotted lines, a trough is provided for thereception I of the bags or other containers for the mate- 'rialundergoing compression; such bags bevmg carried into the compressionchamber when the front wall and bottom are moved into the positionindicated by full lines.

Pressure to actuate the piston, which may be liquid or fluid, iscontrolled by a valve 15, shown in section in Fig. 4. The stem 16 ofthis valve is connected to a bell crank lever 17 pivotally mounted at 17in one of the side supporting members 3, while the opposite end of saidbell crank lever is connected by a link 18, to a foot lever 19, pivotedat 20 at the side of the base 1; said link being connected to the leverat the point 18. This foot lever is normally in the position indi catedby dotted lines Fig. 3; being held in such position by the rod 21,actuated by the spring 22, which is interposed between a nut on the endof said rod and a guide bracket 22 at the side of the base. when it isdesired pressed from the position shown by dotted lines which itoccupies when the press is in active, to the position shown by fulllines, Fig. 3, and said lever is held in this position by means of acatch 23, pivoted at 23, to the base 1, and connected at 24, to atripping rod 25 in operative engagement with the plunger 10, so as to beactuated thereby. The depressing of the foot lever has operated thevalve actuating mechanism comprising the link 18 and bell crank lever 17connected to the valve stem 16, .and such valve has been moved therebyto a .position permitting exhaust of fluid pressure from the under sideof the piston and admission of fluid pressure to the upper side ofthesame whereby the plunger may be lowered.

The position of the plunger 10 in Figs. 1 and 2 as indicated by fulllines, is that just after it has commenced to move downwardly; the bagof material to be compressed being in position in the compressionchamber ready to be acted upon by said plunger. The lowering of theplunger to the extent inclicated has released the links 14 and permitted the weighted levers 13 to move the member 8 constituting thefront wall and bottom of the compression chamber, with the bag ofmaterial, into the closed position indicated. wood, are engaged by theweights when the levers 13 drop and relieve any shock to the member 8).

As the plunger 10 descends and compresses this material, it carries withit the tripping rod 25; the latter having an enlarged portion 25 engagedby a bracket 26 carried by the plunger; the smaller portion of said rodpass-- ing through an opening in said arm bracket and being guidedthereby. When the plunger reaches the limit of its downward movement,the tripping rod 25 engages and shifts the catch 23 to the positionindicated by dotted lines Fig. 1, releasing the foot lever 19 which isautomatically lifted by the spring 22 and through the link 18 and bellcrank (The blocks m, which may be of lever 17 connected to the valve rod16 shifting the position of the valve 15 so as to place the upperportion of the cylinder open to exhaust and the lower portion open topressure; whereupon the plunger will be raised and as it nears the limitof its upward movement it will pick up the links 1 1 connected to theweighted levers 13 and on the continued movement open the compressionchamber by moving the front wall and bottom to the position shown bydotted lines, Fig. 2. The block of compressed material may then belifted out and a fresh bag for compression may be placed in the troughprovided by the member 8.

The operation of this press mechanism is entirely automatic after it hasbeen first set in action by depressing the foot lever 19 and causing itto be engaged by the catch 23 which holds it in the depressed position.

I claim:

1.111 press mechanism, the combination of a frame, an anvil disposed inthe lowerpart of said frame and forming part of a com pression chamber,a movable member pivotally mounted in said frame and forming the frontwall and bottom of said compression chamber, weighted levers for holdingsaid pivotally mounted member in the closed position, a plungeroperatively connected to said weighted levers for acting upon materialdisposed in said compression chamber, a piston for actuating saidplunger, means for raising and lowering said piston including a valve,and a foot lever for actuating said valve; said plunger when loweringunder pressure permitting the weighted levers to close the compressionchamber.

2. In press mechanism, the combination of a frame, an anvil disposed inthe lower part of said frame and forming part of a compres sion chamber,a movable member pivotally mounted in said frame and forming the frontwall and bottom of said compression chamber, weighted levers for holdingsaid pivotally mounted member in the closed'position, a

plunger operatively connected to said weighted levers for acting uponmaterial disposed in sa1d compression chamber, a p1ston for actuatingsaid plunger, means for raising and lowering said piston including avalve, a foot lever for actuating said valve; said plunger when loweringunder pressure permitting the weighted levers to close the compressionchamber, a pivoted catch for holding said foot lever in the depressedposition during the compressing action, and means operated by thedescending plunger for displacing said catch and releasing the footlever; such action of the lever reversing the valve and causing thepiston to raise the plunger and open the compression chamber.

3. In press mechanism, the combination of a frame, an anvil disposed inthe lower part of said frame and shaped to form'the rear Iweightedlevers connected to said rock shaft formoving said pivotallymounted member toand holding it in the closed position, a

plunger for acting upon material disposed in the compression chamberformed by said anvil and the pivotally mounted member, a piston foractuating said plunger, means for raising and lowering said pistonincluding a valve controlling the inlet of fluid pressure, a depressiblefoot lever for actuating said valve; said plunger when lowering underpressure permitting the weighted levers to move the pivotally mountedmember of the compression chamber to the closed position, and areleasable catch. for holding said foot lever in the depressed positionduring the compressing action.

l. In press mechanism, the combination of a frmne, an anvil disposed inthe lower part of said frame and shaped to form the rear and side wallsof a compression chamber, a member pivotally mounted in said frame andforming the front wall and bottomof said'compression chamber, a rockshaft supporting said pivotally mounted member,

weighted levers connected to said rock shaft for moving said pivotallymounted member to and holding it in the closed position, a plunger foracting upon material disposed in the compression eha nber formed by saidanvil and the pivotally mounted member, a piston for actuating saidplunger, means for raising and lowering said piston including valvecontrolling the inlet of fluid pressure, a foot lever for actuating saidvalve; said 7 plunger when lowering under pressure permitting theweighted levers to move thepiv-- otally mounted member of thecompression chamber to the closed position, a pivoted catch for holdingsaid foot lever in the depressed position during the compressing action,a trip rod for displacing said catch and re easing the foot lever; saidtrip r d. being actuated by the descending plunger, and a spring forraising said foot lever when released from said catch; such action ofthe foot lever reversing the valve and causing the piston to raise theplunger and open the compression chamber.

n press mechanism, the combination of a f ,ie, an anvil disposed in thelower part of said frame and forming part ofa comp ression chamber, amovable member pivotally mounted in said frame and forming the.

front wall and bottom of said comg iression chamber, weighted levers formoving said pivotally mounted member to the closed po sition, a plungeroperatively connected to said weighted levers for acting upon materialdisposed in said compression chamber,

a piston for actuating said plunger, means for raising and lowering saidpiston including a valve, a foot lever for actuating said valve; saidplunger when lowering permitting the weighted levers to move thepivotally mounted member of the compression chamber to the closed.position, means for holdin said foot lever in the depressed positionduring the compressing action, and means for releasing said foot leverwhen the plunger reaches the lower limit of its movement.

6. In press mechanism. the combination of fixed member forming the endsand one side of a compression chamber, a pivotally mounted memberdisposed relatively to said fixed member and providing the bottom andanother side of said compression chamber, a plunger adapted to belowered into said com pression chamber when said pivotally mountedmember is in place, links connecting said plunger and the pivotallymounted member; the position of said latter member being controlled bythe operation of said plunger through said links, means for lowering andraising the plunger including a valve, a foot lever for operating saidvalve, and means for holding said foot lever in the depressed position;the means actuating the plunger being automatically brought into actionto lift the plunger when the latter reaches the limit of its downwardmovement by the release of said foot lever.

7. In press mechanism, the combination of a fixed member forming onewall and the sides of a compression chamber, a pivotally mounted memberdisposed relatively to said fixed member and providing another wall andbottom to complete said compression chamber, a plunger adapted to belowered into said compression chamber when the wall of said pivotallymounted member is in place, links connecting said latter wall andplunger; the position of said latter wall being controlled by theoperation of said plunger through said links, means for lowering andraising the plunger including a valve, a foot lever for operating saidvalve, and means for holding said foot lever in the depressed position;the means actuating the plunger be ing automatically brought into actionto lifl the plunger when the latter reaches the limit of its downwardmovement by the release of said foot lever.

' 8. In press mechanism, the combination of a frame, a fixed memberdisposed in the lower part of said frame, a pivotally mounted meming avalve and a depressible foot lever for actuating said valve, means forholding said lever in the depressed position whereby the valve may beheld in the lowered position,

means actuated by the plunger when 1t the sides of a compressionchamber, a pivotally mounted member disposed relatively to said fixedmember and comprising another wall and the bottom of said compressionchamber, a plunger adapt-ed to be lowered into said compression chamberwhen said movable wall is in place, means cooperating with said plungerfor controlling the position of said movable Wall and fluid pressuremeans for lowering and raising the plunger; said means beingautomatically brought into action to raise the plunger when the latterreaches the limit of its downward movement.

In witness whereof I have signed this specilication.

RICHARD DINZL.

